GB1366049A - Method and apparatus for producing a magnitude proportional to the average amplitude of a multiplicity of input pulses - Google Patents
Method and apparatus for producing a magnitude proportional to the average amplitude of a multiplicity of input pulsesInfo
- Publication number
- GB1366049A GB1366049A GB4105972A GB4105972A GB1366049A GB 1366049 A GB1366049 A GB 1366049A GB 4105972 A GB4105972 A GB 4105972A GB 4105972 A GB4105972 A GB 4105972A GB 1366049 A GB1366049 A GB 1366049A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulses
- multiplicity
- producing
- average amplitude
- input pulses
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000008280 blood Substances 0.000 abstract 2
- 210000004369 blood Anatomy 0.000 abstract 2
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/18—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
- G01N15/12—Investigating individual particles by measuring electrical or magnetic effects by observing changes in resistance or impedance across apertures when traversed by individual particles, e.g. by using the Coulter principle
- G01N15/131—Details
- G01N15/132—Circuits
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Computer Hardware Design (AREA)
- Software Systems (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Measurement Of Current Or Voltage (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1624671A CH538787A (de) | 1971-11-09 | 1971-11-09 | Verfahren und Einrichtung zur Erzeugung einer Grösse, die der mittleren Impulsscheitelhöhe einer Vielzahl von Eingangsimpulsen proportional ist |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1366049A true GB1366049A (en) | 1974-09-11 |
Family
ID=4415654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4105972A Expired GB1366049A (en) | 1971-11-09 | 1972-09-05 | Method and apparatus for producing a magnitude proportional to the average amplitude of a multiplicity of input pulses |
Country Status (9)
Country | Link |
---|---|
US (1) | US3878369A (it) |
JP (1) | JPS4859897A (it) |
CA (1) | CA958119A (it) |
CH (1) | CH538787A (it) |
DE (1) | DE2239449C3 (it) |
FR (1) | FR2152270A5 (it) |
GB (1) | GB1366049A (it) |
IT (1) | IT969915B (it) |
SE (1) | SE397587B (it) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4068169A (en) * | 1976-09-21 | 1978-01-10 | Hycel, Inc. | Method and apparatus for determining hematocrit |
ES487980A1 (es) * | 1979-03-27 | 1980-10-01 | Contraves Ag | Dispositivo para un aparato analizador de particulas |
US6653616B2 (en) * | 2002-01-11 | 2003-11-25 | Alcor Micro, Corp. | Device for processing output signals from a photo-diode |
US10605642B1 (en) * | 2019-11-27 | 2020-03-31 | Altec Industries, Inc. | Conductive liquid sensing system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1177774A (fr) * | 1960-04-26 | 1959-04-29 | Evans Electroselenium Ltd | Perfectionnements aux appareils de comptage des petites particules |
US3259891A (en) * | 1964-05-01 | 1966-07-05 | Coulter Electronics | Debris alarm |
US3345502A (en) * | 1964-08-14 | 1967-10-03 | Robert H Berg | Pulse analyzer computer |
US3579249A (en) * | 1969-08-08 | 1971-05-18 | Reynolds Metals Co | Feature counter having between limits amplitude and/or width discrimination |
-
1971
- 1971-11-09 CH CH1624671A patent/CH538787A/de not_active IP Right Cessation
-
1972
- 1972-08-10 DE DE2239449A patent/DE2239449C3/de not_active Expired
- 1972-09-05 GB GB4105972A patent/GB1366049A/en not_active Expired
- 1972-09-12 FR FR7232326A patent/FR2152270A5/fr not_active Expired
- 1972-09-12 US US288421A patent/US3878369A/en not_active Expired - Lifetime
- 1972-09-14 CA CA151,707A patent/CA958119A/en not_active Expired
- 1972-10-26 IT IT30937/72A patent/IT969915B/it active
- 1972-10-27 JP JP47107314A patent/JPS4859897A/ja active Pending
- 1972-11-08 SE SE7214443A patent/SE397587B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CA958119A (en) | 1974-11-19 |
SE397587B (sv) | 1977-11-07 |
CH538787A (de) | 1973-06-30 |
DE2239449A1 (de) | 1973-05-17 |
IT969915B (it) | 1974-04-10 |
DE2239449C3 (de) | 1979-08-02 |
JPS4859897A (it) | 1973-08-22 |
DE2239449B2 (de) | 1978-11-30 |
FR2152270A5 (it) | 1973-04-20 |
US3878369A (en) | 1975-04-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |